Features of granulometric and material composition of road dust, bottom sediments and soils in the Rostov region

Abstract

An expedition was carried out to take samples of road dust, soils, sediments at the water’s edge and bottom sediments of watercourses and reservoirs of Eastern Donbass and other districts of the Rostov region. The goal was to study the granulometric composition of the selected material. In all samples, particles with a dimension of less than 0.01 mm were dominant, while particles with a diameter of <0.002 played a subordinate role. Particles with a diameter of <0.01 prevailed in the composition of the studied samples, regardless of the place of their selection. It was found that the content of the sum of fractions with particle sizes < 0.01 mm and <0.002 are in the selected samples in the following sequence: bottom sediments > sediments at the water’s edge > soil > road dust. The composition of natural formations includes soil particles, aggregates of clay particles, fine sand-siltstone quartz grains, calcite, feldspar, gypsum, single grains of magnetite and titanomagnetite. Technogenic impurities in the dust were represented by aluminosilicate microspheres, metal particles of varying degrees of corrosion, carbon particles.